R. J. Litchfield

Optimal control of a freeze dryer—I Theoretical development and quasi steady state analysis

A. I. Liapis, R. J. Litchfield, A. Liapis, 1979 .

Optimal control of a freeze Dryer—II: Dynamic analysis

R. J. Litchfield, Athanasios I. Liapis, A. Liapis, 1982 .

The application of an on-line model error tolerant sub-optimal controller to a chemical reactor

K. Campbell, R. J. Litchfield, A. Locke, 1979 .

Application of estimation theory to a real process under digital computer control

R. J. Litchfield, R. Litchfield, 1975 .

Ternary adsorption in columns

R. J. Litchfield, Athanasios I. Liapis, A. Liapis, 1980 .

An adsorption-sublimation model for a freeze dryer

A. I. Liapis, R. J. Litchfield, A. Liapis, 1979 .